TUBE maps made entirely from Lego bricks will be displayed in five major tube stations this summer.

Unveiled at King’s Cross this morning the special maps – created by Duncan Titmarsh, the UK’s only certified LEGO professional – will be on display throughout the summer.

The complex maps, intricately made out the childhood favourite, chart the evolution of the London Underground as it celebrates its 150th anniversary.

London Underground employee Ben Apps and his six year old son James unveil the 2020 Tube map

The 2020 version of the London Tube map made entirely from LEGO Bricks

Each map is made up of more than 1,000 Lego bricks and took four days to build.

They show how the network has evolved over the years, starting from 1927, right up to a futuristic prediction of what the system will look like in 2020.

London Underground has held a series of events to mark 150 years since a steam train first powered through the tunnels. These have included a re-enactment of that first journey and a royal visit.

The maps are at London’s King’s Cross Station to celebrate 150 years of the London Underground

Lego has recreated five Tube maps to show how the network has changed and evolved over time

If you would like to see the Lego maps for yourself, they will be displayed in ticket halls at South Kensington, Piccadilly Circus, Green Park and Stratford.

A fifth at King's Cross St Pancras will show a map for 2020 including Crossrail, the proposed Croxley Rail Link, and the proposed Northern Line Extension.

Mike Ashworth, design and heritage manager at London Underground, said: “The Tube network, like the famous Underground map, has constantly evolved to support London’s growth and prosperity.

"The 2020 map at King’s Cross St.Pancras shows the new stations and rail links we want to deliver – we hope this fun LEGO map will inspire the young engineers of the future to help deliver our vision.”

The 1927 version of the London Tube map made entirely from LEGO Bricks

The 1968 version of the London Tube map made entirely from LEGO Bricks